Quadruple tin-folder



3 Sheets-Sheet 1.

(No Model.)

H. N. DAWSON.

QUADRUPLE TIN FOLDER.

No. 412,242. Patented Oct. 8, 1889.

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QUADEUPLE TIN FQLDER.

No. 412,242. Patented 001;. 8, 1889.

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QUADRUPLE TIN FOLDER.

No. 412,242. Patented Oct. 8, 1889.

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UNITED STATES PATENT FFICE.

QUADRUPLE TIN-FOLDER.

SPECIFICATION formingpart of Letters Patent No. 412,242, dated October8, 1889.

Application filed June 16, 1888.

To aZZ whom it may concern:

Be it known that I, HELMIT N. DAWSON, a citizen of the United States,residing at Oak Hill, in the county of Clay and State of Kansas, haveinvented certain new and useful Improvements in Quadruple Tin Folders;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters or figures of referencemarked thereon, which form a part of this specification.

My invention relates to improvements in machines for folding tin andother material in sheet form. for roofing and other purposes; and theobjects are to construct a folder that shall atone and the same movementturn all four of the edges at one and the same time in a perfect mannerand ready for immediate use. I attain these objects by means of themechanism hereinafter described, and illustrated in the accompanyingdrawings, in which- Figure 1 is a plan of my machine; Fig. 2, a frontelevation, having a part of the frame, the crank, and foot-treadleremoved. Fig. 3 is also a front elevation, with tin plate removed andupper platen raised.

Similarlettcrs refer to similar parts throughout the several views.

My machine consists of the frame A, table or bed B, lower platen O, withbevel-edge 0c and bendingdevers r r hinged to the sides thereof andactuated by the connecting-rods D D; upper platen G, having bevel-edges7c is and bending-levers e e, hinged to the sides thereof and actuatedby the connecting-rods E E, the several connecting-rods D D and E Ebeing adjust-able by means of the slots f f and bolts if; the standardF, head H, with guide-piece p sliding in the housing I, which issupported by braces J J from the frame;

the standard-brace 0; plate K, having notched inclined slot n, lever L,bracket m, eccentrics c c, firmly secured to the shafts a and b, andhaving adjusting-holes y y and The shafts a and h are both in the sameplane, and on them are mounted the bevel-gears g and 72. in contact witheach other. The shaft co is U-shaped opposite Serial No. 277,800. (Nomodel.)

the shaft 1). The crank d is secured to the shaft 19 and connected bythe rod 6 with the foot-treadle raised by the spring .9.

l, 2, 3, and 4 are guide-pins passing through holes in thebending-levers, and 5 a sheet of tin or other material in position to befolded.

The lower platen O is immovably secured to the table or bed B. The upperplaten G is attached to and raised and lowered by the standard F, whichis secured to the lever L, the lever L being pivoted at one end to thebracket or and held in position by engaging the ratchet-teeth in theplate K. The platen G is raised or lowered by the lateral moving of thelever L, the incline to the slot at giving the vertical movement to thestandard F. Vhen lowered, the standard F is steadied in its position bycoming in contact with the braces 0 and J, substantially as shown.

When used as a double folder only, it may or may not be necessary toavoid the action of two of the bending-levers by detaching them fromtheir respective rods. It will not be necessary if the sheet to befolded be no wider one way than the platen itself. For instance, if themachine be constructed to fold the four edges of a sheet twenty bytwentyeight inches, two edges of a sheet eighteen by twenty-eight inchescould be folded without detaching the bending-levers.

It will readilybe seen that the foot-treadle may be removed and themachine worked by hand by means of the crank d, if preferred.

Having thus describedmy invention, What I claim as new, and desire tosecure by Letters Patent, is-- In a folder, the combination, with thestationary and movable platens having bendinglevers hinged to the sidesthereof, of a standard secured to the upper platen, a lever connectedwith said standard, and a plate having an inclined toothed slotreceiving one end of said lever, whereby the lateral movement of thelever in said plate imparts a vertical movement to the standard andmovable platen, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

l-IELHIT X. DAWSON. Witnesses:

IV. A. HOWARD, HY. W. STAOKPOLE.

